Ventilation valves are shut-off valves designed to continuously maintain the level of non-aggressive liquids in water basins, pools … Adjustment is achieved by lifting or lowering the float that is connected to the valve via the handle.
Ventilation valves are shut-off valves designed to continuously maintain the level of non-aggressive liquids in water basins, pools … Adjustment is achieved by lifting or lowering the float that is connected to the valve via the handle.
